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jeyben [28]
3 years ago
5

Lisa studied the role of the stamen and stigma in the formation of seeds in flowering plants. She removed all the stamen from on

e flower of a tomato plant and the stigma from another flower and covered each of the flowers with separate plastic bags.
Which tool did Lisa most likely use to remove the stamen and the stigma from both flowers?

eyedropper

syringe

tongs

tweezers
Chemistry
2 answers:
LenaWriter [7]3 years ago
5 0
The answer to this question is tweezers
gulaghasi [49]3 years ago
4 0
The Answer is Tweezers!
You might be interested in
which type of chemical bond would be formed between two elements having electron configuration of 1s2 2s2 2p6 3s2 and 1s2 2s2 2p
OLga [1]
The electron configuration
1
s
2
2
s
2
2
p
6
3
s
2
3
p
2
is the element Silicon.
The key to deciphering this is to look at the last bit of information of the electron configuration
3
p
2
.
The '3' informs us that the element is in the 3rd Energy Level or row of the periodic table. The 'p' tells us that the element is found in the p-block which are all of the Groups to the right of the transition metals, columns 13-18. The superscript '2' tells us that the element is found in the 2nd column of the p-block Group 14.
7 0
3 years ago
Need Some Quick Help, Please :)
Ray Of Light [21]
I think that it is D because the higher the molecular mass, the higher it's boiling point. I hope that helped:) Bye!
6 0
3 years ago
Can some atoms exceed the limits of the octet rule in bonding? If so, give an example.
harkovskaia [24]

Answer:

Yes. Example: <u>Sulfur hexafluoride (SF₆) molecule</u>

Explanation:

According to the octet rule, elements tend to form chemical bonds in order to have <u>8 electrons in their valence shell</u> and gain the stable s²p⁶ electronic configuration.

However, this rule is generally followed by main group elements only.

Exception: <u>SF₆ molecule</u>

In this molecule, six fluorine atoms are attached to the central sulfur atom by single covalent bonds.

<u>Each fluorine atom has 8 electrons in their valence shells</u>. Thus, it <u>follows the octet rule.</u>

Whereas, there are <u>12 electrons around the central sulfur atom</u> in the SF₆ molecule. Therefore, <u>sulfur does not follow the octet rule.</u>

<u>Therefore, the SF₆ molecule is known as a </u><u>hypervalent molecule</u><u> or expanded-valence molecule.</u>

6 0
3 years ago
Please help me with this chem question. Only answer if you know it.
mariarad [96]
Your answer is b because it is
4 0
3 years ago
Read 2 more answers
The answer please thank you
otez555 [7]

Answer:

B

Explanation:

5 0
3 years ago
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